From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-eopbgr20045.outbound.protection.outlook.com ([40.107.2.45] helo=EUR02-VE1-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gwnEg-0000pJ-BK for barebox@lists.infradead.org; Thu, 21 Feb 2019 12:13:56 +0000 From: =?iso-8859-1?Q?Thomas_H=E4mmerle?= Date: Thu, 21 Feb 2019 12:13:50 +0000 Message-ID: <1550751215-25530-2-git-send-email-thomas.haemmerle@wolfvision.net> References: <1550751215-25530-1-git-send-email-thomas.haemmerle@wolfvision.net> In-Reply-To: <1550751215-25530-1-git-send-email-thomas.haemmerle@wolfvision.net> Content-Language: en-US MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH v2] firmware-zynqmp: port from linux To: "barebox@lists.infradead.org" Cc: =?iso-8859-1?Q?Thomas_H=E4mmerle?= From: Thomas Haemmerle Port Xilinx Zynq MPSoC Firmware layer driver from linux. Signed-off-by: Thomas Haemmerle --- arch/arm/Kconfig | 1 + arch/arm/mach-zynqmp/Makefile | 2 +- arch/arm/mach-zynqmp/firmware-zynqmp.c | 601 +++++++++++++++++++++ .../arm/mach-zynqmp/include/mach/firmware-zynqmp.h | 66 +++ 4 files changed, 669 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-zynqmp/firmware-zynqmp.c create mode 100644 arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index f5c1471..9d3f5b2 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -250,6 +250,7 @@ config ARCH_ZYNQMP select CPU_V8 select HAS_DEBUG_LL select HAVE_PBL_MULTI_IMAGES + select ARM_SMCCC select COMMON_CLK select COMMON_CLK_OF_PROVIDER select CLKDEV_LOOKUP diff --git a/arch/arm/mach-zynqmp/Makefile b/arch/arm/mach-zynqmp/Makefile index c601374..021efc9 100644 --- a/arch/arm/mach-zynqmp/Makefile +++ b/arch/arm/mach-zynqmp/Makefile @@ -1,2 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-or-later -obj- := __dummy__.o +obj-y += firmware-zynqmp.o diff --git a/arch/arm/mach-zynqmp/firmware-zynqmp.c b/arch/arm/mach-zynqmp/firmware-zynqmp.c new file mode 100644 index 0000000..a3ee992 --- /dev/null +++ b/arch/arm/mach-zynqmp/firmware-zynqmp.c @@ -0,0 +1,601 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Xilinx Zynq MPSoC Firmware layer + * + * Copyright (c) 2018 Thomas Haemmerle + * + * based on Linux xlnx-zynqmp + * + * Michal Simek + * Davorin Mista + * Jolly Shah + * Rajan Vaja + */ + +#include +#include +#include + +#include + +#define ZYNQMP_PM_VERSION_MAJOR 1 +#define ZYNQMP_PM_VERSION_MINOR 0 + +#define ZYNQMP_PM_VERSION ((ZYNQMP_PM_VERSION_MAJOR << 16) | \ + ZYNQMP_PM_VERSION_MINOR) + +#define ZYNQMP_TZ_VERSION_MAJOR 1 +#define ZYNQMP_TZ_VERSION_MINOR 0 + +#define ZYNQMP_TZ_VERSION ((ZYNQMP_TZ_VERSION_MAJOR << 16) | \ + ZYNQMP_TZ_VERSION_MINOR) + +#define PAYLOAD_ARG_CNT 4 + +/* SMC SIP service Call Function Identifier Prefix */ +#define PM_SIP_SVC 0xC2000000 + +enum pm_ret_status { + XST_PM_SUCCESS = 0, + XST_PM_INTERNAL = 2000, + XST_PM_CONFLICT, + XST_PM_NO_ACCESS, + XST_PM_INVALID_NODE, + XST_PM_DOUBLE_REQ, + XST_PM_ABORT_SUSPEND, +}; + +enum pm_api_id { + PM_GET_API_VERSION = 1, + PM_FPGA_LOAD = 22, + PM_FPGA_GET_STATUS, + PM_IOCTL = 34, + PM_QUERY_DATA, + PM_CLOCK_ENABLE, + PM_CLOCK_DISABLE, + PM_CLOCK_GETSTATE, + PM_CLOCK_SETDIVIDER, + PM_CLOCK_GETDIVIDER, + PM_CLOCK_SETRATE, + PM_CLOCK_GETRATE, + PM_CLOCK_SETPARENT, + PM_CLOCK_GETPARENT, + PM_EFUSE_ACCESS = 53, + PM_GET_TRUSTZONE_VERSION = 0xA03, +}; + +/** + * zynqmp_pm_ret_code() - Convert PMU-FW error codes to Linux error codes + * @ret_status: PMUFW return code + * + * Return: corresponding Linux error code + */ +static int zynqmp_pm_ret_code(u32 ret_status) +{ + switch (ret_status) { + case XST_PM_SUCCESS: + case XST_PM_DOUBLE_REQ: + return 0; + case XST_PM_NO_ACCESS: + return -EACCES; + case XST_PM_ABORT_SUSPEND: + return -ECANCELED; + case XST_PM_INTERNAL: + case XST_PM_CONFLICT: + case XST_PM_INVALID_NODE: + default: + return -EINVAL; + } +} + +static noinline int do_fw_call_fail(u64 arg0, u64 arg1, u64 arg2, + u32 *ret_payload) +{ + return -ENODEV; +} + +/* + * PM function call wrapper + * Invoke do_fw_call_smc or do_fw_call_hvc, depending on the configuration + */ +static int (*do_fw_call)(u64, u64, u64, u32 *ret_payload) = do_fw_call_fail; + +/** + * do_fw_call_smc() - Call system-level platform management layer (SMC) + * @arg0: Argument 0 to SMC call + * @arg1: Argument 1 to SMC call + * @arg2: Argument 2 to SMC call + * @ret_payload: Returned value array + * + * Invoke platform management function via SMC call (no hypervisor present). + * + * Return: Returns status, either success or error+reason + */ +static noinline int do_fw_call_smc(u64 arg0, u64 arg1, u64 arg2, + u32 *ret_payload) +{ + struct arm_smccc_res res; + + arm_smccc_smc(arg0, arg1, arg2, 0, 0, 0, 0, 0, &res); + + if (ret_payload) { + ret_payload[0] = lower_32_bits(res.a0); + ret_payload[1] = upper_32_bits(res.a0); + ret_payload[2] = lower_32_bits(res.a1); + ret_payload[3] = upper_32_bits(res.a1); + } + + return zynqmp_pm_ret_code((enum pm_ret_status)res.a0); +} + +/** + * do_fw_call_hvc() - Call system-level platform management layer (HVC) + * @arg0: Argument 0 to HVC call + * @arg1: Argument 1 to HVC call + * @arg2: Argument 2 to HVC call + * @ret_payload: Returned value array + * + * Invoke platform management function via HVC + * HVC-based for communication through hypervisor + * (no direct communication with ATF). + * + * Return: Returns status, either success or error+reason + */ +static noinline int do_fw_call_hvc(u64 arg0, u64 arg1, u64 arg2, + u32 *ret_payload) +{ + struct arm_smccc_res res; + + arm_smccc_hvc(arg0, arg1, arg2, 0, 0, 0, 0, 0, &res); + + if (ret_payload) { + ret_payload[0] = lower_32_bits(res.a0); + ret_payload[1] = upper_32_bits(res.a0); + ret_payload[2] = lower_32_bits(res.a1); + ret_payload[3] = upper_32_bits(res.a1); + } + + return zynqmp_pm_ret_code((enum pm_ret_status)res.a0); +} + +/** + * zynqmp_pm_invoke_fn() - Invoke the system-level platform management layer + * caller function depending on the configuration + * @pm_api_id: Requested PM-API call + * @arg0: Argument 0 to requested PM-API call + * @arg1: Argument 1 to requested PM-API call + * @arg2: Argument 2 to requested PM-API call + * @arg3: Argument 3 to requested PM-API call + * @ret_payload: Returned value array + * + * Invoke platform management function for SMC or HVC call, depending on + * configuration. + * Following SMC Calling Convention (SMCCC) for SMC64: + * Pm Function Identifier, + * PM_SIP_SVC + PM_API_ID = + * ((SMC_TYPE_FAST << FUNCID_TYPE_SHIFT) + * ((SMC_64) << FUNCID_CC_SHIFT) + * ((SIP_START) << FUNCID_OEN_SHIFT) + * ((PM_API_ID) & FUNCID_NUM_MASK)) + * + * PM_SIP_SVC - Registered ZynqMP SIP Service Call. + * PM_API_ID - Platform Management API ID. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1, + u32 arg2, u32 arg3, u32 *ret_payload) +{ + /* + * Added SIP service call Function Identifier + * Make sure to stay in x0 register + */ + u64 smc_arg[4]; + + smc_arg[0] = PM_SIP_SVC | pm_api_id; + smc_arg[1] = ((u64)arg1 << 32) | arg0; + smc_arg[2] = ((u64)arg3 << 32) | arg2; + + return do_fw_call(smc_arg[0], smc_arg[1], smc_arg[2], ret_payload); +} + +static u32 pm_api_version; +static u32 pm_tz_version; + +/** + * zynqmp_pm_get_api_version() - Get version number of PMU PM firmware + * @version: Returned version value + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_get_api_version(u32 *version) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!version) + return -EINVAL; + + /* Check is PM API version already verified */ + if (pm_api_version > 0) { + *version = pm_api_version; + return 0; + } + ret = zynqmp_pm_invoke_fn(PM_GET_API_VERSION, 0, 0, 0, 0, ret_payload); + *version = ret_payload[1]; + + return ret; +} + +/** + * zynqmp_pm_get_trustzone_version() - Get secure trustzone firmware version + * @version: Returned version value + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_get_trustzone_version(u32 *version) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + if (!version) + return -EINVAL; + + /* Check is PM trustzone version already verified */ + if (pm_tz_version > 0) { + *version = pm_tz_version; + return 0; + } + ret = zynqmp_pm_invoke_fn(PM_GET_TRUSTZONE_VERSION, 0, 0, + 0, 0, ret_payload); + *version = ret_payload[1]; + + return ret; +} + +/** + * get_set_conduit_method() - Choose SMC or HVC based communication + * @np: Pointer to the device_node structure + * + * Use SMC or HVC-based functions to communicate with EL2/EL3. + * + * Return: Returns 0 on success or error code + */ +static int get_set_conduit_method(struct device_node *np) +{ + const char *method; + + if (of_property_read_string(np, "method", &method)) { + pr_warn("%s missing \"method\" property\n", __func__); + return -ENXIO; + } + + if (!strcmp("hvc", method)) { + do_fw_call = do_fw_call_hvc; + } else if (!strcmp("smc", method)) { + do_fw_call = do_fw_call_smc; + } else { + pr_warn("%s Invalid \"method\" property: %s\n", + __func__, method); + return -EINVAL; + } + + return 0; +} + +/** + * zynqmp_pm_query_data() - Get query data from firmware + * @qdata: Variable to the zynqmp_pm_query_data structure + * @out: Returned output value + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_query_data(struct zynqmp_pm_query_data qdata, u32 *out) +{ + int ret; + + ret = zynqmp_pm_invoke_fn(PM_QUERY_DATA, qdata.qid, qdata.arg1, + qdata.arg2, qdata.arg3, out); + + /* + * For clock name query, all bytes in SMC response are clock name + * characters and return code is always success. For invalid clocks, + * clock name bytes would be zeros. + */ + return qdata.qid == PM_QID_CLOCK_GET_NAME ? 0 : ret; +} + +/** + * zynqmp_pm_clock_enable() - Enable the clock for given id + * @clock_id: ID of the clock to be enabled + * + * This function is used by master to enable the clock + * including peripherals and PLL clocks. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_enable(u32 clock_id) +{ + return zynqmp_pm_invoke_fn(PM_CLOCK_ENABLE, clock_id, 0, 0, 0, NULL); +} + +/** + * zynqmp_pm_clock_disable() - Disable the clock for given id + * @clock_id: ID of the clock to be disable + * + * This function is used by master to disable the clock + * including peripherals and PLL clocks. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_disable(u32 clock_id) +{ + return zynqmp_pm_invoke_fn(PM_CLOCK_DISABLE, clock_id, 0, 0, 0, NULL); +} + +/** + * zynqmp_pm_clock_getstate() - Get the clock state for given id + * @clock_id: ID of the clock to be queried + * @state: 1/0 (Enabled/Disabled) + * + * This function is used by master to get the state of clock + * including peripherals and PLL clocks. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_getstate(u32 clock_id, u32 *state) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + ret = zynqmp_pm_invoke_fn(PM_CLOCK_GETSTATE, clock_id, 0, + 0, 0, ret_payload); + *state = ret_payload[1]; + + return ret; +} + +/** + * zynqmp_pm_clock_setdivider() - Set the clock divider for given id + * @clock_id: ID of the clock + * @divider: divider value + * + * This function is used by master to set divider for any clock + * to achieve desired rate. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_setdivider(u32 clock_id, u32 divider) +{ + return zynqmp_pm_invoke_fn(PM_CLOCK_SETDIVIDER, clock_id, divider, + 0, 0, NULL); +} + +/** + * zynqmp_pm_clock_getdivider() - Get the clock divider for given id + * @clock_id: ID of the clock + * @divider: divider value + * + * This function is used by master to get divider values + * for any clock. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_getdivider(u32 clock_id, u32 *divider) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + ret = zynqmp_pm_invoke_fn(PM_CLOCK_GETDIVIDER, clock_id, 0, + 0, 0, ret_payload); + *divider = ret_payload[1]; + + return ret; +} + +/** + * zynqmp_pm_clock_setrate() - Set the clock rate for given id + * @clock_id: ID of the clock + * @rate: rate value in hz + * + * This function is used by master to set rate for any clock. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_setrate(u32 clock_id, u64 rate) +{ + return zynqmp_pm_invoke_fn(PM_CLOCK_SETRATE, clock_id, + lower_32_bits(rate), + upper_32_bits(rate), + 0, NULL); +} + +/** + * zynqmp_pm_clock_getrate() - Get the clock rate for given id + * @clock_id: ID of the clock + * @rate: rate value in hz + * + * This function is used by master to get rate + * for any clock. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_getrate(u32 clock_id, u64 *rate) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + ret = zynqmp_pm_invoke_fn(PM_CLOCK_GETRATE, clock_id, 0, + 0, 0, ret_payload); + *rate = ((u64)ret_payload[2] << 32) | ret_payload[1]; + + return ret; +} + +/** + * zynqmp_pm_clock_setparent() - Set the clock parent for given id + * @clock_id: ID of the clock + * @parent_id: parent id + * + * This function is used by master to set parent for any clock. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_setparent(u32 clock_id, u32 parent_id) +{ + return zynqmp_pm_invoke_fn(PM_CLOCK_SETPARENT, clock_id, + parent_id, 0, 0, NULL); +} + +/** + * zynqmp_pm_clock_getparent() - Get the clock parent for given id + * @clock_id: ID of the clock + * @parent_id: parent id + * + * This function is used by master to get parent index + * for any clock. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_clock_getparent(u32 clock_id, u32 *parent_id) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + int ret; + + ret = zynqmp_pm_invoke_fn(PM_CLOCK_GETPARENT, clock_id, 0, + 0, 0, ret_payload); + *parent_id = ret_payload[1]; + + return ret; +} + +/** + * zynqmp_is_valid_ioctl() - Check whether IOCTL ID is valid or not + * @ioctl_id: IOCTL ID + * + * Return: 1 if IOCTL is valid else 0 + */ +static inline int zynqmp_is_valid_ioctl(u32 ioctl_id) +{ + switch (ioctl_id) { + case IOCTL_SET_PLL_FRAC_MODE: + case IOCTL_GET_PLL_FRAC_MODE: + case IOCTL_SET_PLL_FRAC_DATA: + case IOCTL_GET_PLL_FRAC_DATA: + return 1; + default: + return 0; + } +} + +/** + * zynqmp_pm_ioctl() - PM IOCTL API for device control and configs + * @node_id: Node ID of the device + * @ioctl_id: ID of the requested IOCTL + * @arg1: Argument 1 to requested IOCTL call + * @arg2: Argument 2 to requested IOCTL call + * @out: Returned output value + * + * This function calls IOCTL to firmware for device control and configuration. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_ioctl(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, + u32 *out) +{ + if (!zynqmp_is_valid_ioctl(ioctl_id)) + return -EINVAL; + + return zynqmp_pm_invoke_fn(PM_IOCTL, node_id, ioctl_id, + arg1, arg2, out); +} + +static const struct zynqmp_eemi_ops eemi_ops = { + .get_api_version = zynqmp_pm_get_api_version, + .query_data = zynqmp_pm_query_data, + .clock_enable = zynqmp_pm_clock_enable, + .clock_disable = zynqmp_pm_clock_disable, + .clock_getstate = zynqmp_pm_clock_getstate, + .clock_setdivider = zynqmp_pm_clock_setdivider, + .clock_getdivider = zynqmp_pm_clock_getdivider, + .clock_setrate = zynqmp_pm_clock_setrate, + .clock_getrate = zynqmp_pm_clock_getrate, + .clock_setparent = zynqmp_pm_clock_setparent, + .clock_getparent = zynqmp_pm_clock_getparent, + .ioctl = zynqmp_pm_ioctl, +}; + +/** + * zynqmp_pm_get_eemi_ops - Get eemi ops functions + * + * Return: Pointer of eemi_ops structure + */ +const struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void) +{ + return &eemi_ops; +} +EXPORT_SYMBOL_GPL(zynqmp_pm_get_eemi_ops); + + +static int zynqmp_firmware_probe(struct device_d *dev) +{ + int ret; + + ret = get_set_conduit_method(dev->device_node); + if (ret) + goto out; + + zynqmp_pm_get_api_version(&pm_api_version); + if (pm_api_version < ZYNQMP_PM_VERSION) { + dev_err(dev, "Platform Management API version error." + "Expected: v%d.%d - Found: v%d.%d\n", + ZYNQMP_PM_VERSION_MAJOR, + ZYNQMP_PM_VERSION_MINOR, + pm_api_version >> 16, pm_api_version & 0xFFFF); + ret = -EIO; + goto out; + } + dev_dbg(dev, "Platform Management API v%d.%d\n", + pm_api_version >> 16, pm_api_version & 0xFFFF); + + ret = zynqmp_pm_get_trustzone_version(&pm_tz_version); + if (ret) { + dev_err(dev, "Legacy trustzone found without version support\n"); + ret = -EIO; + goto out; + } + + if (pm_tz_version < ZYNQMP_TZ_VERSION) { + dev_err(dev, "Trustzone version error." + "Expected: v%d.%d - Found: v%d.%d\n", + ZYNQMP_TZ_VERSION_MAJOR, + ZYNQMP_TZ_VERSION_MINOR, + pm_tz_version >> 16, pm_tz_version & 0xFFFF); + ret = -EIO; + goto out; + } + dev_dbg(dev, "Trustzone version v%d.%d\n", + pm_tz_version >> 16, pm_tz_version & 0xFFFF); + +out: + if (ret) + do_fw_call = do_fw_call_fail; + return ret; +} + +static struct of_device_id zynqmp_firmware_id_table[] = { + { .compatible = "xlnx,zynqmp-firmware", }, + {} +}; + +static struct driver_d zynqmp_firmware_driver = { + .name = "zynqmp_firmware", + .probe = zynqmp_firmware_probe, + .of_compatible = DRV_OF_COMPAT(zynqmp_firmware_id_table), +}; + +static int zynqmp_firmware_init(void) +{ + return platform_driver_register(&zynqmp_firmware_driver); +} +core_initcall(zynqmp_firmware_init); diff --git a/arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h b/arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h new file mode 100644 index 0000000..7a65f78 --- /dev/null +++ b/arch/arm/mach-zynqmp/include/mach/firmware-zynqmp.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Xilinx Zynq MPSoC Firmware layer + * + * Copyright (c) 2018 Thomas Haemmerle + * + * based on Linux xlnx-zynqmp + * + * Michal Simek + * Davorin Mista + * Jolly Shah + * Rajan Vaja + */ + +#ifndef FIRMWARE_ZYNQMP_H_ +#define FIRMWARE_ZYNQMP_H_ + +enum pm_ioctl_id { + IOCTL_SET_PLL_FRAC_MODE = 8, + IOCTL_GET_PLL_FRAC_MODE, + IOCTL_SET_PLL_FRAC_DATA, + IOCTL_GET_PLL_FRAC_DATA, +}; + +enum pm_query_id { + PM_QID_INVALID, + PM_QID_CLOCK_GET_NAME, + PM_QID_CLOCK_GET_TOPOLOGY, + PM_QID_CLOCK_GET_FIXEDFACTOR_PARAMS, + PM_QID_CLOCK_GET_PARENTS, + PM_QID_CLOCK_GET_ATTRIBUTES, + PM_QID_CLOCK_GET_NUM_CLOCKS = 12, +}; + +/** + * struct zynqmp_pm_query_data - PM query data + * @qid: query ID + * @arg1: Argument 1 of query data + * @arg2: Argument 2 of query data + * @arg3: Argument 3 of query data + */ +struct zynqmp_pm_query_data { + u32 qid; + u32 arg1; + u32 arg2; + u32 arg3; +}; + +struct zynqmp_eemi_ops { + int (*get_api_version)(u32 *version); + int (*query_data)(struct zynqmp_pm_query_data qdata, u32 *out); + int (*clock_enable)(u32 clock_id); + int (*clock_disable)(u32 clock_id); + int (*clock_getstate)(u32 clock_id, u32 *state); + int (*clock_setdivider)(u32 clock_id, u32 divider); + int (*clock_getdivider)(u32 clock_id, u32 *divider); + int (*clock_setrate)(u32 clock_id, u64 rate); + int (*clock_getrate)(u32 clock_id, u64 *rate); + int (*clock_setparent)(u32 clock_id, u32 parent_id); + int (*clock_getparent)(u32 clock_id, u32 *parent_id); + int (*ioctl)(u32 node_id, u32 ioctl_id, u32 arg1, u32 arg2, u32 *out); +}; + +const struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void); + +#endif /* FIRMWARE_ZYNQMP_H_ */ -- 2.7.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox